Earthquake early Warning ShakeAlert system: West coast wide production prototype
Monica D. Kohler, Elizabeth S. Cochran, Douglas D. Given, Stephen Guiwits, Doug Neuhauser, Ivan Hensen, J. Renate Hartog, Paul Bodin, Victor Kress, Stephen Thompson, Claude Felizardo, Jeff Brody, Rayo Bhadha, Stan Schwarz
2017, Seismological Research Letters (89) 99-107
Earthquake early warning (EEW) is an application of seismological science that can give people, as well as mechanical and electrical systems, up to tens of seconds to take protective actions before peak earthquake shaking arrives at a location. Since 2006, the U.S. Geological Survey has been working in collaboration with...
Northern hemisphere jet stream positions indices as diagnostic tools for climate and ecosystem dynamics
Soumaya Belmecheri, Flurin Babst, Amy R. Hudson, Julio L. Betancourt, Valerie Trouet
2017, Earth Interactions (21) 1-23
The latitudinal position of the Northern Hemisphere jet stream (NHJ) modulates the occurrence and frequency of extreme weather events. Precipitation anomalies in particular are associated with NHJ variability; the resulting floods and droughts can have considerable societal and economic impacts. This study develops a new climatology of the 300-hPa NHJ...
Do observed levels of exploitation from consumption-oriented and trophy-oriented fisheries reduce relative stock densities of Muskellunge below target levels in northern Wisconsin?
Matthew D. Faust, Michael J. Hansen
2017, Book chapter, Muskellunge management: Fifty years of cooperation among anglers, scientists, and fisheries biologists
Muskellunge anglers desire to catch large fish, and release rates by recreational anglers often approach 100% (Isermann et al. 2011). Muskellunge are also a culturally significant fish for Chippewa tribes and support a subsistence spearing fishery in Wisconsin’s Ceded Territory (Erickson 2007). Although Muskellunge populations within the state’s Ceded Territory...
How many Laysan Teal Anas laysanensis are on Midway Atoll? Methods for monitoring abundance after reintroduction
Michelle H. Reynolds, Karen Courtot, Jeffrey Hatfield
2017, Wildfowl (67) 60-71
Wildlife managers often request a simple approach to monitor the status of species of concern. In response to that need, we used eight years of monitoring data to estimate population size and test the validity of an index for monitoring accurately the abundance of reintroduced, endangered Laysan Teal Anas laysanensis....
Evaluating the potential for weed seed dispersal based on waterfowl consumption and seed viability
Jaime A. Farmer, Elisabeth B. Webb, Robert A. Pierce II, Kevin W. Bradley
2017, Pest Management Science (73) 2592-2603
BACKGROUNDMigratory waterfowl have often been implicated in the movement of troublesome agronomic and wetland weed species. However, minimal research has been conducted to investigate the dispersal of agronomically important weed species by waterfowl. The two objectives for this project were to determine what weed species are being...
Quantifying animal movement for caching foragers: the path identification index (PII) and cougars, Puma concolor
Kirsten E. Ironside, David J. Mattson, Tad Theimer, Brian Jansen, Brandon Holton, Terence R. Arundel, Michael Peters, Joseph O. Sexton, Thomas C. Edwards Jr.
2017, Movement Ecology (5) 1-17
Relocation studies of animal movement have focused on directed versus area restricted movement, which rely on correlations between step-length and turn angles, along with a degree of stationarity through time to define behavioral states. Although these approaches may work well for grazing foraging strategies in a patchy landscape, species...
Macroscale patterns of synchrony identify complex relationships among spatial and temporal ecosystem drivers
Noah R. Lottig, Pang-Ning Tan, Tyler Wagner, Kendra Spence Cheruvelil, Patricia A. Soranno, Emily H. Stanley, Caren E. Scott, Craig A. Stow, Shuai Yuan
2017, Ecosphere (8) 1-11
Ecology has a rich history of studying ecosystem dynamics across time and space that has been motivated by both practical management needs and the need to develop basic ideas about pattern and process in nature. In situations in which both spatial and temporal observations are available, similarities in temporal behavior...
Detrital zircon geochronology of quartzose metasedimentary rocks from parautochthonous North America, east-central Alaska
Cynthia Dusel-Bacon, Christopher S. Holm-Denoma, James V. Jones III, John N. Aleinikoff, James K. Mortensen
2017, Lithosphere (9) 927-952
We report eight new U-Pb detrital zircon ages for quartzose metasedimentary rocks from four lithotectonic units of parautochthonous North America in east-central Alaska: the Healy schist, Keevy Peak Formation, and Sheep Creek Member of the Totatlanika Schist in the northern Alaska Range, and the Butte assemblage in the northwestern Yukon-Tanana...
Importance of fishing as a segmentation variable in the application of a social worlds model
Larry M. Gigliotti, Loren Chase
2017, Proceedings of the South Dakota Academy of Science (96) 58-76
Market segmentation is useful to understanding and classifying the diverse range of outdoor recreation experiences sought by different recreationists. Although many different segmentation methodologies exist, many are complex and difficult to measure accurately during in-person intercepts, such as that of creel surveys. To address that gap in the literature, we...
Mineralogical characterization of weathered outcrops as a tool for constraining water chemistry predictions during project planning
Tamara Diedrich, Paul Fix, Andrea L. Foster
2017, Conference Paper, Proceedings of IMWA 2017
Weathered samples from naturally exposed outcrops of troctolite associated with a magmatic Ni-Cu sulphide deposit were characterized by synchrotron-based micro-X-ray fluorescence mapping (µ-XRF) and X-ray absorption spectroscopy (XAS), as well as by lab-based X-ray diffraction, electron microscopy, Raman spectroscopy and wet chemical methods. Metal mobility in weathered samples was assessed using a sequential leach...
Comparison of two viewing methods for estimating largemouth bass and walleye ages from sectioned otoliths and dorsal spines
Eric J. Wegleitner, Daniel A. Isermann
2017, North American Journal of Fisheries Management (37) 1304-1310
Many biologists use digital images for estimating ages of fish, but the use of images could lead to differences in age estimates and precision because image capture can produce changes in light and clarity compared to directly viewing structures through a microscope. We used sectioned sagittal otoliths from 132 Largemouth...
Forecasting consequences of changing sea ice availability for Pacific walruses
Mark S. Udevitz, Chadwick V. Jay, Rebecca L. Taylor, Anthony S. Fischbach, William S. Beatty, Shawn R. Noren
2017, Ecosphere (8)
The accelerating rate of anthropogenic alteration and disturbance of environments has increased the need for forecasting effects of environmental change on fish and wildlife populations. Models linking projections of environmental change with behavioral responses and bioenergetic effects can provide a basis for these forecasts. There is particular interest in forecasting...
Methane- and dissolved organic carbon-fueled microbial loop supports a tropical subterranean estuary ecosystem
D. Brankovits, John W. Pohlman, H. Niemann, M.B. Leigh, M.C. Leewis, K. W. Becker, T.M. Iliffe, Alvarez. F., M.F. Lehmann, B. Phillips
2017, Nature Communications (8) 1-12
Subterranean estuaries extend inland into density-stratified coastal carbonate aquifers containing a surprising diversity of endemic animals (mostly crustaceans) within a highly oligotrophic habitat. How complex ecosystems (termed anchialine) thrive in this globally distributed, cryptic environment is poorly understood. Here, we demonstrate that a microbial loop shuttles methane and dissolved organic carbon...
Spatial data analytics on heterogeneous multi- and many-core parallel architectures using python
Jason R. Laura, Sergio J. Rey
2017, Book chapter, Encyclopedia of GIS
Parallel vector spatial analysis concerns the application of parallel computational methods to facilitate vector-based spatial analysis. The history of parallel computation in spatial analysis is reviewed, and this work is placed into the broader context of high-performance computing (HPC) and parallelization research. The rise of cyber infrastructure and its manifestation...
Case study - Dynamic pressure-limited capacity and costs of CO2 storage in the Mount Simon sandstone
Steven T. Anderson, Hossein Jahediesfanjani
2017, Conference Paper, 35th USAEE/IAEE North American Conference
Widespread deployment of carbon capture and storage (CCS) is likely necessary to be able to satisfy baseload electricity demand, to maintain diversity in the energy mix, and to achieve climate and other objectives at the lowest cost. If all of the carbon dioxide (CO2) emissions from stationary sources (such as...
Foundations of translational ecology
Carolyn A. F. Enquist, Stephen T. Jackson, Gregg M. Garfin, Frank W. Davis, Leah R. Gerber, Jeremy S. Littell, Jennifer L. Tank, Adam Terando, Tamara U. Wall, Benjamin S. Halpern, J. Kevin Hiers, Toni L. Morelli, Elizabeth McNie, Nathan L. Stephenson, Matthew A. Williamson, Connie A. Woodhouse, Laurie Yung, Mark W. Brunson, Kimberly R. Hall, Lauren M. Hallett, Dawn M. Lawson, Max A. Moritz, Koren R. Nydick, Amber Pairis, Andrea J. Ray, Claudia M. Regan, Hugh D. Safford, Mark W. Schwartz, M. Rebecca Shaw
2017, Frontiers in Ecology and the Environment (15) 541-550
Ecologists who specialize in translational ecology (TE) seek to link ecological knowledge to decision making by integrating ecological science with the full complement of social dimensions that underlie today's complex environmental issues. TE is motivated by a search for outcomes that directly serve the needs of natural resource managers and...
Radiometric characterization of Landsat Collection 1 products
Esad Micijevic, Obaidul Haque, Nischal Mishra
2017, Conference Paper, Proceedings Volume 10402, Earth Observing Systems XXII
Landsat data in the U.S. Geological Survey (USGS) archive are being reprocessed to generate a tiered collection of consistently geolocated and radiometrically calibrated products that are suitable for time series analyses. With the implementation of the collection management, no major updates will be made to calibration of the Landsat sensors...
Canyons microbiology studies
Christina A. Kellogg, Stephanie N. Lawler
2017, OCS Study BOEM 2017-060-12
Off the eastern coast of the United States, several deep canyons cut through the continental shelf, acting like funnels to move sediment from the shelf out to the deep seafloor. Exposed rock outcrops and ledges along the walls of these canyons provide important habitat for deepsea corals and sponges. Although...
Translating statistical species-habitat models to interactive decision support tools
Lyndsie S. Wszola, Victoria L. Simonsen, Erica F. Stuber, Caitlyn R. Gillespie, Lindsey N. Messinger, Karie L. Decker, Jeffrey J. Lusk, Christopher F. Jorgensen, Andrew A. Bishop, Joseph J. Fontaine
2017, PLoS ONE (12) 1-13
Understanding species-habitat relationships is vital to successful conservation, but the tools used to communicate species-habitat relationships are often poorly suited to the information needs of conservation practitioners. Here we present a novel method for translating a statistical species-habitat model, a regression analysis relating ring-necked pheasant abundance to landcover, into an...
A wideband magnetoresistive sensor for monitoring dynamic fault slip in laboratory fault friction experiments
Brian D. Kilgore
2017, Sensors (17) 1-29
A non-contact, wideband method of sensing dynamic fault slip in laboratory geophysical experiments employs an inexpensive magnetoresistive sensor, a small neodymium rare earth magnet, and user built application-specific wideband signal conditioning. The magnetoresistive sensor generates a voltage proportional to the changing angles of magnetic flux lines, generated by differential motion...
Evaluating factors driving population densities of mayfly nymphs in Western Lake Erie
Martin A. Stapanian, Patrick Kocovsky, Betsy L. Bodamer Scarbro
2017, Journal of Great Lakes Research (43) 1111-1118
Mayfly (Hexagenia spp.) nymphs have been widely used as indicators of water and substrate quality in lakes. Thermal stratification and the subsequent formation of benthic hypoxia may result in nymph mortality. Our goal was to identify potential associations between recent increases in temperature and eutrophication, which exacerbate hypoxic events in lakes,...
Cobalt—Styles of deposits and the search for primary deposits
Murray W. Hitzman, Arthur A. Bookstrom, John F. Slack, Michael L. Zientek
2017, Open-File Report 2017-1155
Cobalt (Co) is a potentially critical mineral. The vast majority of cobalt is a byproduct of copper and (or) nickel production. Cobalt is increasingly used in magnets and rechargeable batteries. More than 50 percent of primary cobalt production is from the Central African Copperbelt. The Central African Copperbelt is the...
Groundwater flux and nutrient loading in the northeast section of Bear Lake, Muskegon County, Michigan, 2015
Alexander R. Totten, Jessica A. Maurer, Joseph W. Duris
2017, Scientific Investigations Report 2017-5092
Bear Lake in North Muskegon, Michigan, is listed as part of the Muskegon Lake area of concern as designated by the U.S. Environmental Protection Agency. This area of concern was designated as a result of eutrophication and beneficial use impairments. On the northeast end of Bear Lake, two man-made retention...
Development of the next generation of seismic design value maps for the 2020 NEHRP Provisions
Ronald Hamburger, David Bonneville, C.B. Crouse, James D. Dolan, Ben Enfield, Julie Furr, Robert Hanson, James A. Harris, John Heintz, William Holmes, Jon Hooper, Charles Kircher, Nico Luco, Steven McCabe, Robert Pekelnicky, Jon Siu, Sanaz Rezaeian, Philipp Schneider, Jonathan P. Stewart, Siamak Sattar, Mai Tong, Jiqiu Yuan
2017, Report
During the period January 2015 through August 2018, a joint committee of U.S. Geological Survey (USGS) representatives and National Institute of Building Sciences Building Seismic Safety Council (BSSC) volunteers and staff formed a committee to conduct Project 17. The purpose of Project 17 was to formulate recommendations for the rules...
Sage grouse
Shawna Zimmerman, Jennifer M. Timmer, Cameron L. Aldridge, Sara J. Oyler-McCance, Clait E. Braun, Jessica R. Young
2017, Book chapter, Colorado Encyclopedia
Sage grouse are a group of chicken-sized birds with a unique breeding behavior and dependence on sagebrush shrubs (genus Artemisia) for food and shelter throughout their life cycle. In the last century, human population expansion throughout western North America has reduced the amount of sagebrush and degraded and fragmented the...
